Home / 20,381.14-30,571.75-5,590.26

Finding the Fourth Proportional to 20,381.14, 30,571.75 and 5,590.26

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Solution

The fourth proportional to 20,381.14, 30,571.75 and 5,590.26 is: 8,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.14 : 30,571.75 = 5,590.26 : x
  2. Step 2: Convert to fraction form
    20,381.14/30,571.75 = 5,590.26/x
  3. Step 3: Cross multiply
    20,381.14x = 30,571.75 × 5,590.26
  4. Step 4: Simplify right side
    20,381.14x = 170,904,031.16
  5. Step 5: Solve for x
    x = 170,904,031.16/20,381.14
  6. Step 6: Final answer
    x = 8,385.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.